<template>
<el-container class="home-container">
    <!-- 头部区域 -->
    <el-header>
        <div>
            <p class="log"><em>log</em></p>
            <span>电商后台管理系统</span>
        </div>
        <el-button type="info" @click="logout">退出</el-button>
    </el-header>
    <!-- 页面主体 -->
    <el-container>
        <!-- 左侧边栏 -->
        <el-aside :width="isCollapse ? '64px':'200px'">
          <div class="toggle-button" @click="toggleCollapse">|||</div>
            <el-menu
            background-color="#333744"
            text-color="#fff"
            active-text-color="#409EFF" unique-opened :collapse-transition='false' :collapse="isCollapse" router :default-active="activePath">
            <!-- 一级菜单 -->
            <el-submenu :index="item.id+''" v-for="item in menuList" :key="item.id">
                <!-- 一级菜单模板 -->
                <template slot="title">
                    <!-- 图标 -->
                <i :class="iconsObj[item.id]"></i>
                <!-- 文本 -->
                <span>{{item.authName}}</span>
                </template>
                <!-- 二级菜单 -->
                <el-menu-item :index="'/'+subItem.path" v-for="subItem in item.children" :key="subItem.id" @click="saveNavState('/'+subItem.path)">
                    <template slot="title">
                    <!-- 图标 -->
                    <i class="el-icon-menu"></i>
                     <!-- 文本 -->
                    <span>{{subItem.authName}}</span>
                    </template>
                </el-menu-item>
            </el-submenu>
            </el-menu>
        </el-aside>
        <!-- 右侧主体 -->
        <el-main>
          <router-view></router-view>
        </el-main>
    </el-container>
</el-container>
</template>
<script>
export default {
  data () {
    return {
      menuList: [],
      iconsObj: {
        125: 'iconfont icon-users',
        103: 'iconfont icon-tijikongjian',
        101: 'iconfont icon-shangpin',
        102: 'iconfont icon-danju',
        145: 'iconfont icon-baobiao'
      },
      isCollapse: false,
      activePath: ''
    }
  },
  created () {
    this.getMenulist()
    this.activePath = window.sessionStorage.getItem('activePath')
  },
  methods: {
    logout () {
      window.sessionStorage.clear()
      this.$router.push('/login')
    },
    async getMenulist () {
      const { data: res } = await this.$http.get('menus')
      if (res.meta.status !== 200) return this.$message.error(res.meta.msg)
      this.menuList = res.data
    },
    toggleCollapse () {
      this.isCollapse = !this.isCollapse
    },
    saveNavState (activePath) {
      window.sessionStorage.setItem('activePath', activePath)
      this.activePath = activePath
    }
  }
}
</script>
<style lang="less" scoped>
.home-container{
    height: 100%;
}
.el-header{
    background-color: #373d41;
    display: flex;
    justify-content: space-between;
    padding-left: 5px;
    align-items: center;
    color: #fff;
    font-size: 20px;
    >div{
        display: flex;
        align-items: center;
        span{
        margin-left: 15px;
    }
    }
}
.el-aside{
    background-color: #333744;
    .el-menu{
      border-right: none;
      }
}
.el-main{
    background-color: #eaedf1;
}
.iconfont{
  margin-right: 10px;
}
.toggle-button{
  background-color: #4a5064;
  font-size: 10px;
  line-height: 24px;
  color: #fff;
  text-align: center;
  letter-spacing: 0.2em;
  cursor: pointer;
}
.log{
  line-height: 50px;
  width: 50px;
  height: 50px;
  text-align: center;
  &::first-letter{
    color: rgb(22, 208, 233);
  }
  em{
    color: rgba(0, 255, 76, 0.616);
    }
  }
</style>
